In a competitive process, bonainvest has developed an entire quarter and realized the last stage with the Arnhof. The project comprises a semi-detached house with 4.5 rooms each, two apartment buildings with 3.5 to 5.5 room apartments and three terraced single-family houses with 5.5 rooms each as well as car garages. The unobstructed site is slightly elevated and benefits from plenty of sun and light. The buildings are Minergie certified and heat is generated by means of a heat pump. In addition, the apartments were built according to the bonacasa construction standards.
Architects: wahlirüefli Architekten und Raumplaner AG


  • Useful floor space
    in m²
  • Number of units

Key data

Adresse Sonnhalde 20
3250 Lyss / Bern
Purpose Apartment property
Completion 2014
Useful floor space 2392m²
Number of buildings 6
Number of units 21 Apartment property

Residential rental index

Rooms Total of which for sale of which for the portfolio
3.5 10 10 0
4.5 3 3 0
5.5 8 8 0